William E. Lewis
52Patents
14h-index
68Co-inventors
87Inventor score
Filing activity: Jun 29, 1977 → Dec 2, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5108581A | Hydroconversion of heavy feeds by use of both supported and unsupported catalysts | Chemistry; Metallurgy | 107 | Expired |
| US4656840A | Container for freezable liquid | Emerging Cross-Sectional Technologies | 90 | Expired |
| US4765882A | Hydroconversion process | Chemistry; Metallurgy | 61 | Expired |
| US4740295A | Hydroconversion process using a sulfided molybdenum catalyst concentrate | Performing Operations; Transporting | 52 | Expired |
| US4762607A | Hydroconversion process with combined temperature and feed staging | Chemistry; Metallurgy | 44 | Expired |
| US4151070A | Staged slurry hydroconversion process | Chemistry; Metallurgy | 42 | Expired |
| US5897768A | Desulfurization process for removal of refractory organosulfur heterocycles from petroleum streams | Chemistry; Metallurgy | 40 | Expired |
| US4719002A | Slurry hydroconversion process | Chemistry; Metallurgy | 38 | Expired |
| US6824673B1 | Production of low sulfur/low aromatics distillates | Chemistry; Metallurgy | 37 | Expired |
| US8826270B1 | Regulating memory bandwidth via CPU scheduling | Physics | 36 | Active |
| US5968346A | Two stage hydroprocessing with vapor-liquid interstage contacting for vapor heteroatom removal | Chemistry; Metallurgy | 34 | Expired |
| US6054041A | Three stage cocurrent liquid and vapor hydroprocessing | Chemistry; Metallurgy | 33 | Expired |
| US8799554B1 | Methods and system for swapping memory in a virtual machine environment | Physics | 28 | Active |
| US7906447B2 | Regeneration and rejuvenation of supported hydroprocessing catalysts | Performing Operations; Transporting | 22 | Active |
| US8128811B2 | Hydroprocessing using rejuvenated supported hydroprocessing catalysts | Chemistry; Metallurgy | 14 | Active |
| US9657239B2 | Pyrolysis tar upgrading using recycled product | Chemistry; Metallurgy | 12 | Active |
| US7140405B2 | Mixing apparatus | Performing Operations; Transporting | 10 | Expired |
| US7435335B1 | Production of low sulfur distillates | Chemistry; Metallurgy | 9 | Expired |
| US8591726B2 | Two stage hydroprocessing with divided wall column fractionator | Emerging Cross-Sectional Technologies | 8 | Active |
| US7530373B2 | Mixing apparatus and methods using the same | Performing Operations; Transporting | 8 | Expired |
| US4740489A | Method of preparing a hydroconversion sulfided molybdenum catalyst concentrate | Chemistry; Metallurgy | 8 | Expired |
| US8424181B2 | High pressure revamp of low pressure distillate hydrotreating process units | Emerging Cross-Sectional Technologies | 8 | Active |
| US5871635A | Hydroprocessing of petroleum fractions with a dual catalyst system | Chemistry; Metallurgy | 8 | Expired |
| US6835301B1 | Production of low sulfur/low aromatics distillates | Chemistry; Metallurgy | 7 | Expired |
| US4834864A | Once-through coking with solids recycle | Chemistry; Metallurgy | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.